USB Universal Credit/Debit Magnetic Stripe Card Reader Bidirectional Scanner 402 USB interface Perfect gadget for peeking what is stored inside cards such as debit, credit, discount, VIP club, door/entry security cards USB 1.1/2.0 data and power interface (driver free play and play) DC 5V5% &lt;=35mA (Via USB) Reads the second track from magnetic cards Designed lifespan: over 600,000 swipes